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Finding the Fourth Proportional to 33,745.68, 46,568.61 and 18,639

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Solution

The fourth proportional to 33,745.68, 46,568.61 and 18,639 is: 25,721.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,745.68 : 46,568.61 = 18,639 : x
  2. Step 2: Convert to fraction form
    33,745.68/46,568.61 = 18,639/x
  3. Step 3: Cross multiply
    33,745.68x = 46,568.61 × 18,639
  4. Step 4: Simplify right side
    33,745.68x = 867,992,321.79
  5. Step 5: Solve for x
    x = 867,992,321.79/33,745.68
  6. Step 6: Final answer
    x = 25,721.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.